Sheet-fed rotary perfecting printing press



M n. M 2

Oc zt. 3, 1939; H. M. BARBER SHEET-FED ROTARY PERFECTING PRINTING PRESS Filed July 21, 1957 Mmmlm Patented Oct. 3,1939"- PATENT OFFICE sneer-min 1mm rnm'rm Howard -G GPBESS M. Pawcatuck, Oonm, G. B. Oottrell & Sons Company, Westerly B. I.,-'a corporation of Delaware e a Application July :1, 1931, Serial so. 154305 4 Claims- Y (01, 101-229)] In, sheet fed rotary perfecting-presses where quick drying inks and drying units are employed, it is very desirable that the several units be so located with respect to one another as to produce 6 the best results while occupying a minimum amount of space.

The object or my printing and feeding means, ery means that the sheets canbe printed and the inks dried with a minimum travel of the sheets.

Another objectnof my invention is to so locate the drying unit with respect to the form cylinders of the printing units that the vapors rising from inventioncis to so locate the the drying unit can have no influence on said .iorm

cylinders. a

A further object of my invention is to provide a series or cooperating sheet taking means posi tioned on the several units to pass thesheets from 20 ,a source of sheet supplythrough the several units of the presstoa'delivery pile. I

V My invention comprises, generally, iirst and second printing units, means for feeding sheets to the first printing unit from a sheet supply, a dry- 'ing unit, a transfer carrier for transferring the sheets to the drying unit fromthe. first printing unit, a delivery, and a second transfer carrier for transferring the sheets thereto from the second printing unit V 'A practical embodiment of my invention is represented in the accompanyin drawing which is a diagrammatic side elevation of so much of a printingpress as will give an understanding of The first printing lmit comprises an impression cylinder I, its two diametrically opposed. sheet taking devices 2, form cylinder 3, and

mechanisml'. 5 ."f-

The second printing unit comprises can impres- Qlsion cylinder 5, its two diametrically opposed sheet taking devices 5, for -m cylinder't and-inking mechanism i The impression cylinders I and of these two- -printingun.its are located in substantially the same horizontal plane and in with each other. The drying unit comprises a cylinder 1' with its three equally spaced sheet taking devices 8', a heating device 8 -(in the present instance a series of gas burners), and a cooling device II (in the present instance a series of cold air blast nozl'des). Said drying unitis located between and in line with the printing units and in a higher horizontal plane in order that the iorin cylinders of the may not be influenced by the vapors printing units given oi! from the drying unit,

drying units, sh t supply. sheettransfer carriers, and sheet deny-' iottheflrstprinting hereimformthesubiectmatterofmy located 'at one end oi the feedingmeans 12, having ",isarrangedtocoact-witha sheet taking means 7 feed the sheets in the well 7 sheet feeding table M to known manner to the sheet .the impression cylinder I of the-first printing unit.

Saidsheet supply ll andsheetfeedingmeans i2 are located in linewith the several other units or the press. 7

ammy carrier i5, having'asheettaklng device 10 It, is interposed between the impression cylinder unitandthecylinderloithe drying rmit. The'sheet taking device li o! the rotary carrier l5 is-arranged to transfer sheets from the sheet'taking devices 2 of the impression cylinder l'to the sheet taking devices 8.0! the cylinder 1..

aseccndrotarycarrlerilhavingasheettaking device I8, is interposed between the impression cylinder I ofthe second printing unit and the sheet delivery endless carrier 1!, having sheet takingwdevices'ill. Said sheet taking devices :0 are arranged to take the sheets from the sheet taking device I! of the rotary carrier i1 and deliverthem to a sheetdelivery pile 21, located at the opposite end of the press. from the sheet supply Y i Saidrotary carriers l5, l1, said sheet delivery endless carrier II, and said deliverypiie ii are all located in line with one another and with the other several units of the press.

ltistobeundefstoodihatanysuitahleheaflng medium; such as gas, may he snppliedto the heatingdevice 9 ofthedryingunit and thatanysuitable cooling medium, such as cold air, may he supplied to the cooling device ll ofthe drying ,unit. a

' -1twillalsobeunderstoodthatanywelllmown or approved means may be employed for driving 46 the several units of the press.

It will also be understood that the sheets are controlled on the surface of the cylinders of the respective units by means of sheet guides 22 andlor other well known or approved means, not shown herein.

It-willalsobeunderstoodthatanywellknown or approvedquickdryinginksmaybeusedinthe prinldnglmits. I

, Ityvill beseenfllat the first to the thesheetsasthey'passirom dprintingnnitare 'jectedtoiheactionotheaiingandcoolingdevicesSand llwhiieheingheid ofthecylinderlofthedryingnnit.

Thepartslshowmdescrmhutnotclahned amendtakingdevices2of ing application, filed July 21, 1937 Serial No. 154,706.

It is evident that various changes may be made in the form, construction, and arrangement of the several parts without departing from the spirit and scope of my invention, hence I do not intend to limit myself to theembodiment herein inder coacting therewith, a rotary .carrier for transferring the sheets from the impression cylinder of the first printing unit to the cylinder of the drying unit, means for transferring the sheets from the cylinder of thedryingunit to the impression cylinder of the second printing unit, a delivery, and a rotarycarrierfor transferring the sheets thereto from the said impression cylinder of the second printing unit.

2. In a sheet fed rotary printing press, first and second printing units, each comprising an impression cylinder, a form cylinder and an inking mechanism therefor, means for feeding sheets to the impression cylinder .of the first printing unit, a drying unit comprising separate gas heating and cold air supply devices and a cylinder coacting therewith, a rotary carrier for transferring the sheets from the impression cylinder of the first printing unit to the cylinder of the drying unit, means for transferring the sheets from the cylinder of the drying unit to the impression cylinder of the second printing unit, a

delivery, and a rotary carrier for transferring the sheets thereto from the said impression cylinder of the second printing unit.

3. In a sheet fed rotary perfecting printing press, first and second printing units, each comprising an impression cylinder, a form cylinder and an inking mechanism therefor, a rotary carrier for feeding sheets to the impression cylinder of the first printing unit, a drying unit comprising a cylinder'and separate heating and cooling devices arranged around the upper side of the cylinder, a rotary carrier for transferring the sheets from the impressing: cylinder of the first printing unit to the under side of the cylinder of the drying unit, means for transferring the sheets from the under side of the drying unit cylinder to the impression cylinder of the second printing unit, adelivery, and a rotary carrier for transferring the sheets thereto from theimpression cylinder of the second printing unit.

4. In a sheet fed rotary perfecting printing press, first and second printing units, each comprising'an impression cylinder, a form cylinder and an inking mechanism therefor, a rotary carrier for feeding sheets to the impression cylinder of the first printing unit, a drying'unit comprising a cylinder and gas heating and .cold air supply devices arranged around the upper sideof' the cylinder, a rotary carrier for transferring the sheets from the impression cylinder of thefirst printing unit to the under side of the drying unit cylinder, means for transferring thesheets from-the under side of the drying 'unit cylinder to the impression cylinder or the second printing unit, a delivery, and a rotary carrier for transferring the sheets theretofrom said impression cylinder of the second printing unit.

. HOWARD M. BARBER. 

